MAGNETIC-BEHAVIOR OF AMORPHOUS FE40NI40B20 ALLOY TREATED ISOTHERMALLYBELOW CRYSTALLIZATION TEMPERATURE

Authors
MITRA A RAO V MOHANTY ON GHATAK SK
Citation
A. Mitra et al., MAGNETIC-BEHAVIOR OF AMORPHOUS FE40NI40B20 ALLOY TREATED ISOTHERMALLYBELOW CRYSTALLIZATION TEMPERATURE, Materials transactions, JIM, 35(2), 1994, pp. 108-111
Citations number
9
Categorie Soggetti
Metallurgy & Mining","Material Science
Journal title
Materials transactions, JIM → ACNP
ISSN journal
09161821
Volume
35
Issue
2
Year of publication
1994
Pages
108 - 111
Database
ISI
SICI code
0916-1821(1994)35:2<108:MOAFAT>2.0.ZU;2-E
Abstract
The amorphous Fe40Ni40B20-alloy shows excellent soft magnetic properti es when heat-treated at 630 K for 10-15 min. The improved magnetic sof tness is attributed to the relaxation of internal stress. The relaxati on behaviour obeys the so-called 'ln t' kinetics. Small crystalline pa rticles do appear after longer duration isothermal treatment at 630 K which is much lower than the crystallization temperature. Formation of crystalline particles induces magnetocrystalline anisotropy in the sy stem which in turn detoriorates the magnetic softness.